Safety appliance



Feb. 25, 1957)?" J G. BOLLOCK 1,748,860

SAFETY APPLIANCE Fi1 e d May 1928 flaw/M1 0 ,UNVITEDVtST TE oFrI JOHN G; BoLLocK, or nAsrmesQNEsmrsxa i v SAIETYIIAPPLVIANGE: f hp plication iuea' 8,1928. Serial No. 276,105.

This invention relates't o pneumaticiham rod 10 and is bent at right'angles with re- 7 mersand more particularly toa'device'for spect thereto, the opposite end of the rod rem-ovably securing the tool tothe barrel of 10 having ahead 11 that engages one end the 'pneumaticha mmer to prevent the same ,of' the coiled spring 12 which is mounted from becoming displaced, but at the same within the housing 13 that in turn is secured .15 5

time provide means to permit the ready atto the barrel 5 adjacent to the handle thereof. vtachment or detachment ofthe tool orset. A slot 14 is formed in the end wall of An object of the invention'is to provide a the housing 13 and "receives the rod 10, a 1 device of this character including a spring through which slot the rod moves, when 10 cushioning means to cushion the movements it is desired to move the device to a position 6o y of the securing device to relieve the operators to release the tool. The opposite end of the hands of undue strain when the tool is in coiled spring 12 engages one wall of the hous- V 7 operation. e 1 ing 13 as clearly shown by Figure 2. Grooves With the foregoing and other objects in are formed'in the outer surfaces of the sides I 15 view, which will appear as the description 7 of the housing 13 adjacent to the upper edges proceeds, theinvention resides in the combithereof and 'accommodate'the ribs 15 that ex nation and arrangement of parts and inthe tend inwardly from the depending flang'es details of constructionhereinafter described 16 of the cover 17, defining a construction V and claimed, it being understood that changes which'will permit the cover 17 to be readily 20 in the preciseembodiment of the invention and easily removed or replaced, should it be 10' I 3-3, of Figure 1.

fied form of the invention.

L'of, the barrel and handle being-"of the usual .in'g'provlded to secure the member 19 to the aoi V, 7 which is provided 'a iphera1 flange 'In'a device or the character described, a

: 9 being of a diameter to fit over the head of extending from the upper edge thereof, a;

- Thisloop-Q is formed at'the outer end of end of the spring engaging the housing adja- I139 herein disclosed may be made within the desired to repair orreplacespring l2.

scope of what is claimed, without departing The cover 17 is held in position by means of from thespirit'of the invention. ascrew indicated at 18, to the end that; ao-

Referring to the drawing.- j cidental displacement of the cover 'willbe 25 Figure l is an elevational viewof a'pneuprevented. v matic hammersupplied with a device con} Straps 25 are formed integral with the structed inaccordance with thejinvention. housing 13 and are formed with apjertured' Figure2 is a longitudinal sectional View, ears to receive the bolt 26 for securing the through the housing'at one end of the device. ends of the; straps together. It will be seen H I u 3 Figure 3is a sectional View taken on line that these straps may bemoved into close enso y Q 7 gagementwith the barrel 5 to hold the .hous I l V Figure lis a sectional view taken on line ing in position. 1 e r o 1-4; of Figure 2. I .In the form of the inventionas illustrated Figure'5 isan'elevational'view of a modiby Figure 5, the device ,embodiesa' rod 19.

v .formeclwith a loop 20 at one end thereof, the as Referring to the drawingin detail,- the loop beingprovided to fit'overthe tool with reference characterb designates the barrel of which the device is used. At the opposite a pneumatic-hammer and the reference char.- end of the member 19 is a loop 21 through *acter 6 designates the handle portiontherewhich the'strap 22 extends, the strap 22 beand wellknown construction. I handle; H r Fitted'inone end of the barrel 5 is a tool I claim: v

' 8 against which the loop 9 engages, the loop. housing, oneendofthe housing'havinga slot the tool, in a manner as shown by'Figure rod having'a loop atone end fitted over the {V 1, with the result that rotary movement of head of a tool, a head at the opposite end of i the toolis permitted,butdisplacement of the the rod, a coiled spring on the rod, one end toolaccidentally 'isprevented. j g Y "of the spring engaging the head, the opposite cent to the slot, to normally hold the rod to the limit of one of its movements, a cover slidably mounted on the housing and having an end Wall closing the slot over the rod, and means for securing the cover in position.

In testimony that I claim the foregoing as w my own, I have hereto affixed my signature. 

